hieu 2 so la 64 tim so be biet so be hon 1/7 so lon la 2 tim so be

hieu 2 so la 64 tim so be biet so be hon 1/7 so lon la 2 tim so be

Ai nhanh mình tích nhớ có cả cách làm

1. trong 1 phep chia co thuong la 3 va so du la 24 va biet hieu giua so bi chia va so chia la 218. tim so bi chia va so chia 

2. biet trung binh cong hai so lon hon so be 24 don vi . biet so lon hon so be 24 don vi. biet so lon la 68 . tim so be

hieu 2 so la 1,4 tim 2so biet 2lan so lon lon hon so be la 6,3

tim hai so biet so lon cong so be cong hieu cua chung bang 1470

ma hieu hon so be la 243

hieu cua hai so do la 98978 biet rang so be bang so lon hon so be nhat khac nhau hai ba chu so tim so so va so lon giup nha minh cho 1 like

bài 1: a) binh nghi ra mot so .Biet rang so lon nhat co hai chu so hon so do la 65.tim so binh da nghi.

b) an nghi ra mot so. biet rang so do be hon so be nhat co ba chu so la 15. tim so an da nghi.

bai 2: tu ba chu so 5, 2, 3 an lap duoc so lon nhat va so be nhat co mat du ba chu so do , roi tinh hieu hai so vua lap duoc . hieu do la bao nhieu ???nhanh len nhe mik dang can rat gap 

Hieu 2 so la 1,4. Biet rang 5 lan so be hon 3 lan so lon la 18,6. Tim 2 so do.

hieu cua hai so la 17.6 biet 6 lan so lon hon 4 lan so be 176.4 tim tong 2 so